Expanding envelope



April 28, 1931. B, OSEPH N 1,302,429

EXPANDING ENVELOPE Filed June so, 1930 Inventor 36 972152 JOZ ZM A Home y Patented Apr. 28, 1931 PATENT OFFICE BENJAMIN J'OSEPHSON, or New YonmN. Y.

EXPANDING ENVELOPE Application filed June so,

pockets, and other envelopes and files of this type having an expanding feature and which are made of heavy paper or of a material known in the trade as fiber tex, and the like material.

It has become the established practice of manufacturers of this class of merchandise. to reinforce'the same at points which are subjected to bending and tearing, to reinforce the same against such destructive Wear 20 and tearing and to make a more serviceable article. I

It is the object of this invention to provide a reinforcing means for paper manufacturers of this kind which will be an improvement in effectiveness and cheapness of manufacture over existing methods of reinforcements of this ty e.

This and other ob ects of the invention are accomplished by a novel, new and improved method of inserting cloth or similar strips glued or otherwise attached within and among the parts of the files or envelopes.

It is to be noted that this invention applies herein to envelopes and files constructed of aper or fiber tex which are made up of ve ieces co sisting of (1) the gusset ortion w ich is t e pleated portion of the file pocket (2) 'the back portion which is of double thickness (3) the front portion which is likewise of double thickness thus forming five sections glued orotherwise at; tached together.

It is to be understood that I do not wish to limit the application of my' invention to the particular embodiment thereofas "set" forth herein, and changes in material used, their composition and arrangement, and the combination of parts may be changed to any extent comprehended by the scope of the in- 1930. Serial No. 464,955.

vention as set out in this specification and the drawings, and within the limitation of the claims appended hereto.

The objects mentioned and other objects and further objects, the nature of the invention, its composition and arrangement and combination of parts, may be understood by anyone familiar with the art to which this invention relates by a reading of the following explanations and descriptions in connection with the accompanying drawings, in which:-

Figure 1 is a perspective side view of a file pocket havin a cut-out portion to show the placement 0 the reinforcing means.

Figure 2 is an end sectional View on the line 2-2 of Figure 1.

Figure 3 is a cross-section on the line 3--3 of Figure 2.

Figure 4 is a perspective view of an expanding wallet embodying the features of reinforcement according to the idea of the invention.

Figure l is a file ocket of conventional type composed of ve pieces, namely, a

double front portion 5 and a double back portion 6 and the expanding portion 7. The numeral 8 re resents a strip of cloth or the like glued to the inside of the front layer of the portion 5 running the entire length thereof. of the portion 5 denominated as 5a extends The inside layer-.portion as";

approximately half-way up said strip-8,;

and is glued or otherwise attached thereto so'that the front layer 5, the t p or strip 8 and the piece 5a areattachefintegrally to ether. I a, g r

he piece 7 is attached tqthe' section 5 by' passing one end thereof between the piece 5 and the strip 8. The iec'e 7 has at its top another strlp 9 of clot or the like glued or otherwise attached thereto before it is passed between said piece 5 and the strip 8.. Thus it will be observed that a laminated construction lea o tsi-ilati-"thez corners of the envelope or 'wal et edmposed of, the outer la er of portion 5 having glued to it the tab portion 7a., the strip or tape 9 glued to the tab 7a, the strip 8 glued to the strip 9 and the piece 5a glued to the strip 8, in the order named. Thus is provided a heavily reinforced corner and flap for the type of file pocket illustrated in Fi ure 1. Of course, it is to be understood t at the number of plies and the kind of material used to make the plies, whether paper or material like cloth, does not affect the improvement whatsoever.

Another modification of the idea of the invention is set out in Figure 4 which is an expanding wallet 01. envelope of a .conventional design. In this modification the reinforcement is arranged at its top edge and the lower edge or hinge portion of the envelope flap, but is otherwise of-exactly the same construction as the portion 5 of Fi ure 1.

11 both illustrations of the invention the strip 9 is carried across the gusset portion and the tab of the gusset portion when said tap or strip 9 is glued thereto and passed between the edges of the double strips of the front portion or section 6 as shown at 10 in Figure 3 as that these elements are glued together in the same way as the strip and pieces of the front portion of Figure 1.

It will be instantly understood by anyone acquainted with the art to which this invention relates that I have provided an inexpensive yet very effective reinforcing means for articles of this type, and in connection with the drawings will enable anyone skilled in this art to construct and apply the improvement and construction used in this invention.

I claim l. A structure of the class described having a multi-ply front section, and a multiply ba'ck section, and expanding gussets connecting the front and back sections, a reinforcing strip attached longitudinally to the inner surface of an outer pl of the front section and extending the ength thereof at the height of the top of the gussets, and an inner ply of the same height as the gussets being attached to the inner surface of said outer ply, and to the reinforcin strip; and other reinforcing strips attache to the inner sides of the gussets near the upper edges, and extendin the length of their upper edges, said reinforced front section and said reinforced gusset-s and said back section being adapted to be attached together in overlapping relation at their adjacent edges so that the adjacent edge portions of the gussets are received between the outer and inner plies of the front section and between the inner and outer plies of the back section.

2. A structure of the class described having a multi-ply front section, and a multiply back section, and expanding gussets connecting the front and back sections, a reinforcing strip attached longitudinally to the inner surface of an outer ply of the front section and extending the length thereof at the height of the top of the gussets, and an inner ply of the same height as the gussets being attached to the inner surface of said outer ply, and to the lower portion of said reinforcing strip; and other reinforcing strips attached to the inner sides of the gussets near their upper edges and extending the length of their upper edges, said reinforced front sections and said reinforced gussets being attached together in overlapping relation at their adjacent edges, and attached together to form joints at the front section composed of outer ply of the front section, the adjacent edge portions of the gussets, the reinforcing strip of the gussets, the reinforcing strip of the front section, and the inner ply of the front section, in this sequence, and joints at the rear section composed of the outer ply of the back section, the adjacent edge portions of the gussets, the reinforcing strip of the gussets, and the inner ply of the back section, in this sequence.

3. A structure of the class described having a multi-ply front section, and a multiply back section, and expanding gussets connecting the front and back sections, a reinforcing strip attached longitudinally to theinner surface of an outer ply of the front section and extending the length thereof at the height of the top of the gussets, and an inner ply of the same height as the gussets being attached to the inner surface of said outer ply, and to the reinforcing strip; and other reinforcing strips attached to the inner sides of the gussets near the upper edges, and extending the length of their upper edges, said reinforced front section and said reinforced gussets and said back sec-. tion being adapted to be attached together in overlapping relation at their adjacent edges so that the adjacent edge portions of the gussets are received between the outer and inner lies of the front section and between the inner and outer plies of the back section, all of the said plies being of the same material and thickness.

In testimony whereof I affix my signature.

BENJAMIN JOSEPHSON. 

